That’s when something unexpected caught her son’s attention.

"While looking at the iPads James must have seen something that sparked his interest in the mall, and he took off running full speed out the door," Rink wrote on Facebook. "He slammed into the wall full force, which knocked him over. The entire store gasped as they heard the sound of James' head hitting the glass and then the floor."

Rink comforted her son while he was on the floor and other people in the Apple Store stared at them. An employee, Andrew, asked if they were OK.

"I think we're gonna be OK," Rink said. "But it looks like he's gonna have quite a goose egg on his forehead."

Andrew responded with the sweetest act.

He sat down on the floor with James and conducted the entire demonstration for the new iPad. Rink was touched by Andrew's kind act.

"It's been very difficult to have a kid with autism because you take risks whenever you go out in the world," Rink told ABC News. "So when this happened and Andrew sat next to us, he might as well have given me a million dollars."

Andrew shared a fist bump with James. Rink snapped a photo of them together.

The Facebook photo of them went viral.

"Hey Lynn, I want to say thank you so much for those kind words! I began working at Apple in hopes of having fulfilling moments like this," he wrote. "Post Apple my hopes are to work within the realm of youth counseling. Thanks again for making my day!"

Andrew continued to earn praise from everyone.

"We're so proud of Andrew and celebrate how he and so many of our employees interact with their local communities every day," Angela Ahrendts, senior vice president of retail and online Apple stores, told ABC News. "We wish James and his family all the best."